Executive Assistant, Third Derivative
Denver, Denver County, Colorado, 80285, USA
Listed on 2026-10-20
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Administrative/Clerical
Office Administrator/ Coordinator, Virtual Assistant/ Remote Admin, Business Administration
Job Description:
Are you an administrative professional with exceptional organizational and communication skills? Are you able to manage several responsibilities at a time while ensuring a high level of accuracy and attention to detail? Are you a proactive problem solver who can anticipate challenges and opportunities ahead of time? Do you have strong team and interpersonal skills and the ability to work independently?
Do you enjoy the administrative challenges of supporting executive-level individuals? If yes, then join our team!
Founded by RMI and New Energy Nexus, Third Derivative (D3) is an open, collaborative climate tech ecosystem that accelerates startups and moves markets. By guiding and supporting climate tech entrepreneurs who are bringing new ideas and innovation to market, we accelerate the clean future worldwide. Through a vast global network of deep experts, corporate partners, and investors, we help startups go to market faster with their breakthrough ideas, create real impact, and transform markets.
Position OverviewThe Executive Assistant will primarily support Third Derivative’s Managing Director (MD) with the possibility of some support for additional program Principals.
Responsibilities- Executive Support
Manages individual calendar of MD. Ensures MD is prepared for meetings and engagements by providing necessary information, reserving preparation time and scheduling preparation meetings as necessary, and completing a wide range of tasks that facilitate MD's ability to effectively lead the organization. Submits timesheets and expense reports, maintains associated documentation. Understands priorities and commitments of MD and is able to make adjustments seamlessly, proactively and with little advance notice.
Handles requests daily from MD and follows up in a timely and professional manner. Trusted to use discretion with corporate credit card and professionalism when sending email communication on MD’s behalf. Serves as day-to-day point of contact for troubleshooting for MS Office, Teams, and other platforms; resolving issues as they arise and communicating solutions to team. - Travel
Creates and manages all logistical and booking details related to domestic and international travel for MD and maintains all travel rewards and membership programs. Provides quick solutions to unanticipated changes in travel schedules. Ensures travel documents are up to date (passports, TSA Pre Check, Global Entry, Driver’s License, et al).
- Technical Knowledge
Maintains a high level of proficiency with all RMI approved platforms and tools including Microsoft Office, Zoom, Workday, Adobe, and others. Works with IT to proactively resolve MD issues related to software platforms as they arise and communicate solutions to MD. Actively pursues improvement in skill levels and technical proficiency, both independently and drawing from expertise of peers. Proficient note-taker, able to concisely capture action items and follow up with appropriate team members to ensure completion.
- Dependability and Flexibility
Can be relied upon to assist with projects outside areas of primary responsibility and deliver work in the timeframe identified with minimal oversight. Can handle unanticipated changes graciously and efficiently; including changes to schedules, plans and workloads and reacts to these changes in a timely manner. Approaches difficult situations with a positive attitude and identifies solutions. Track record of impeccable ethics and discretion when ensuring that MD expenses are managed according to policy.
Details learned through supporting MD are kept strictly confidential. - Presentation
Exhibits a high level of professionalism in interaction with others both inside and outside RMI. Communicates clearly and effectively verbally and in writing and has superior listening skills. Interacts with others in a warm and professional manner. Represents RMI to the outside world, often by engaging with people at the highest levels in corporations, foundations, government, and academic institutions.
- 5+ years of experience as an Executive Assistant in a professional environment
- Experience planning events and domestic and international travel
- Proficient in Microsoft Office & Zoom
- Proficient in cloud based enterprise resource platform (ERP) like Workday
- Excellent written and verbal communication skills
- Ability to identify potential problems before they arise and proactively propose solutions.
- Ability to maintain…
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